public TerrainChunk(Vector2 coord, int size, lodInfo[] detailLevels, Transform parent, Material material)
{
this.detailLevels = detailLevels;
position = coord * size;
bounds = new Bounds(position, Vector2.one * size);
Vector3 positionV3 = new Vector3(position.x, 0, position.y);
meshObject = new GameObject("Terrain Chunk");
meshRenderer = meshObject.AddComponent <MeshRenderer>();
meshFilter = meshObject.AddComponent <MeshFilter>();
meshRenderer.material = material;
meshObject.transform.position = positionV3;
meshObject.transform.parent = parent;
SetVisible(false);
meshLods = new LodMesh[detailLevels.Length];
for (int i = 0; i < detailLevels.Length; i++)
{
meshLods[i] = new LodMesh(detailLevels[i].lod, UpdateTerrainChunk);
}
islandGen.RequestMapData(position, OnMapDataRecieved);
}
public TerrainChunk(Vector2 coord, int size, LodInfo[] detailLevels, Transform parent, Material material)
{
this.detailLevels = detailLevels;
position = coord * size;
bounds = new Bounds(position, Vector2.one * size);
var positionV3 = new Vector3(position.x, 0, position.y);
meshObject = new GameObject("Terrain Chunk");
meshRenderer = meshObject.AddComponent <MeshRenderer>();
meshFilter = meshObject.AddComponent <MeshFilter>();
meshCollider = meshObject.AddComponent <MeshCollider>();
meshRenderer.material = material;
meshObject.transform.position = positionV3 * _mapGenerator.terrainData.uniformScale;
meshObject.transform.parent = parent;
meshObject.transform.localScale = Vector3.one * _mapGenerator.terrainData.uniformScale;
SetVisible(false);
lodMeshes = new LodMesh[detailLevels.Length];
for (var i = 0; i < detailLevels.Length; i++)
{
lodMeshes[i] = new LodMesh(detailLevels[i].lod, UpdateTerrainChunk);
if (detailLevels[i].useForCollider)
{
collisionLODMesh = lodMeshes[i];
}
}
_mapGenerator.RequestMapData(position, OnMapDataReceived);
}
public void UpdateTerrainChunk()
{
if (mapDataRecieved)
{
float viewerDistanceFromEdge = Mathf.Sqrt(bounds.SqrDistance(viewerPosition));
bool visible = viewerDistanceFromEdge <= maxViewDist;
if (visible)
{
int index = 0;
for (int i = 0; i < detailLevels.Length - 1; i++)
{
if (viewerDistanceFromEdge > detailLevels[i].visibleDistanceThreshhold)
{
index = i + 1;
}
else
{
break;
}
}
if (index != prevLODIndex)
{
LodMesh lodMesh = meshLods[index];
if (lodMesh.hasMesh)
{
prevLODIndex = index;
meshFilter.mesh = lodMesh.mesh;
}
else if (!lodMesh.hasRequestMesh)
{
lodMesh.RequestMesh(mapData);
}
}
visibleChunks.Add(this);
}
SetVisible(visible);
}
}
public TerrainChunk(ChunkIdx idx, float chunkSize, Material material)
{
chunkIdx = idx;
center = new Vector2(chunkIdx.X * chunkSize, chunkIdx.Z * chunkSize);
obj = new GameObject(chunkIdx.ToString());
meshFilter = obj.AddComponent <MeshFilter>();
meshRenderer = obj.AddComponent <MeshRenderer>();
meshCollider = obj.AddComponent <MeshCollider>();
previousLod = -1;
meshRenderer.material = material;
obj.transform.position = new Vector3(center.x, 0, center.y);
meshData = new LodMesh[MAX_LOD + 1];
for (int i = 0; i < MAX_LOD + 1; ++i)
{
meshData[i] = new LodMesh(i, UpdateChunk);
}
generator.RequestMapData(center, OnReceivedMapData);
}
public void UpdateMeshes(LodInfo[] detailLevels)
{
m_meshesUpdated = false;
m_detailLevels = detailLevels;
m_lodMeshes = m_lodMeshes ?? new LodMesh[m_detailLevels.Length];
for (int i = 0; i < detailLevels.Length; i++)
{
var lodMesh = m_lodMeshes[i];
if (lodMesh == null)
{
lodMesh = new LodMesh(detailLevels[i].m_lod, UpdateTerrainChunk, m_addCollider);
}
else
{
lodMesh.ResetLodMesh(detailLevels[i].m_lod, UpdateTerrainChunk);
}
m_lodMeshes[i] = lodMesh;
}
}
